Dead Eye Theory
As many you already know, a dead teaser appeared. One thing that intrigued me was Sona's teaser, where the spot she was hit was her throat, and stuff coming out of her mouth. The thing that got me thinking was that Sona is mute, and I don't think that her throat and mouth being targeted is coincidence, I mean she could be hit by the eye just like Zed if Dead Eye is just some sort of sniper and making eye/head shots would still make sense.
I then tried to find a relation with the Zed teaser, and I thought the significant part of Zed's lore is that he is corrupted in thoughts and blinded by power, which relates to the brain/head (corrupted thoughts) and eye (blinded by power). So Dead Eye hit me by the eye/brain.
But the problem I am having is the Garen and Vi icons. I don't which part of Vi is attacked, and Garen seems to be hit by the eye. I know if there is anything unique about Vi's history is her use of violence, and I can see Dead Eye hitting her by the arms, considering thats what signifies her power. Garen on the other hand is rather hard for me to find something need purifying. As mentioned already, Dead Eye is hitting body parts related to some sort of injust/evil of the champs, Sona being the good guy muted, Zed being the bady due to corruption, and Vi just being a violence police with her arms. But Garen, there isn't much about Garen that needs to be purified. The significant part of Garen is mostly his relationship with Kat, and it is hinted that he has a crush on her, but I don't think love requires purifying, and even if it does, I don't see how that relates to the eye.
Anyways, hope to see more teasers and if anyone wanna contribute, please add on :)
Update: https://www.youtube.com/watch?v=paMXq1V27JI
Garen Teaser out, he was hit by the heart, as he does not know what his heart want - The Love for Kat, or The Path of Justice to Demacia